经过阅(yue)读源码,其实不少思路和Android的匿名(ming)内存有点相(xiang)似(si)阅读本文(wen)之前就算不知(zhi)道dma_buf的设(she)计思想也没关系,我不(bu)会(hui)仔细到(dao)每一行,我会(hui)注(zhu)重(chong)其在gralloc服(fu)务中的申请(qing)流程,看(kan)看ion是如(ru)何(he)管理共享内存,为什(shi)么(me)要(yao)抛(pao)弃ashmem我们
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